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| 型号： | LT1510CS8#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER BATT CONST V/I 8SOIC |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子，镍镉，镍氢 |
| 电源电压： | 6.2 V ~ 28 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
LT1510/LT1510-5
Constant-Voltage/
Constant-Current Battery Charger
FEATURES
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Charges NiCd, NiMH and Lithium-Ion Batteries ––
Only One 1 / 10 W Resistor Is Needed to Program
Charging Current
High Efficiency Current Mode PWM with 1.5A
Internal Switch and Sense Resistor
3% Typical Charging Current Accuracy
Precision 0.5% Voltage Reference for Voltage
Mode Charging or Overvoltage Protection
Current Sensing Can Be at Either Terminal of
the Battery
Low Reverse Battery Drain Current: 3 μ A
Charging Current Soft Start
Shutdown Control
500kHz Version Uses Small Inductor
plest, most efficient solution to fast-charge modern re-
chargeable batteries including lithium-ion (Li-Ion), nickel-
metal-hydride (NiMH)* and nickel-cadmium (NiCd)* that
require constant-current and/or constant-voltage charg-
ing. The internal switch is capable of delivering 1.5A DC
current (2A peak current). The 0.1 ? onboard current
sense resistor makes the charging current programming
very simple. One resistor (or a programming current from
a DAC) is required to set the full charging current (1.5A) to
within 5% accuracy. The LT1510 with 0.5% reference
voltage accuracy meets the critical constant-voltage charg-
ing requirement for lithium cells.
The LT1510 can charge batteries ranging from 2V to 20V.
Ground sensing of current is not required and the battery’s
APPLICATIO N S
negative terminal can be tied directly to ground. A saturat-
ing switch running at 200kHz (500kHz for LT1510-5) gives
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Chargers for NiCd, NiMH and Lithium Batteries
Step-Down Switching Regulator with Precision
Adjustable Current Limit
high charging efficiency and small inductor size. A block-
ing diode is not required between the chip and the battery
because the chip goes into sleep mode and drains only 3 μ A
when the wall adaptor is unplugged. Soft start and shutdown
DESCRIPTIO N
With switching frequency as high as 500kHz, The LT ? 1510
current mode PWM battery charger is the smallest, sim-
TYPICAL APPLICATIO N S
features are also provided. The LT1510 is available in a 16-pin
fused lead power SO package with a thermal resistance of
50 ° C/W, an 8-pin SO and a 16-pin PDIP.
, LTC and LT are registered trademarks of Linear Technology Corporation.
* NiCd and NiMH batteries require charge termination circuitry (not shown in Figure 1).
10 μ H
33 μ H
C1 D1
0.22 μ F MBRM120T3
L1**
D2
MMBD914L
SW V CC
BOOST PROG
LT1510-5
GND V C
+
D3
MBRM120T3
C IN *
10 μ F
1 μ F
300 ?
0.1 μ F
1k
6.19k
8.2V TO 20V
– +
C1 D1
0.22 μ F 1N5819
L1**
D2
1N914
SW V CC
BOOST PROG
LT1510
GND V C
OVP
+
D3
1N5819
C IN *
10 μ F
1 μ F
300 ?
0.1 μ F
1k
3.83k
11V TO 28V
– +
OVP
SENSE
BAT
+
C OUT***
22 μ F
+
4.2V
Q3 ?
2N7002
SENSE
BAT
+
C OUT
22 μ F
TANT
+
+
4.2V
4.2V
R3
Q3 ?
VN2222
NOTE: COMPLETE LITHIUM-ION CHARGER, NO TERMINATION REQUIRED
* TOKIN OR MARCON CERAMIC SURFACE MOUNT
** COILTRONICS TP3-100, 10 μ H, 2.2mm HEIGHT (0.8A CHARGING CURRENT)
COILTRONICS TP1 SERIES, 10 μ H, 1.8mm HEIGHT (<0.5A CHARGING CURRENT)
*** PANASONIC EEFCD1B220
? OPTIONAL, SEE APPLICATIONS INFORMATION
R3
70.6k
0.25%
R4
100k
0.25%
1510 F01
NOTE: COMPLETE LITHIUM-ION CHARGER, NO TERMINATION REQUIRED
* TOKIN OR MARCON CERAMIC SURFACE MOUNT
** COILTRONICS CTX33-2
? OPTIONAL, SEE APPLICATIONS INFORMATION
240k
0.25%
R4
100k
0.25%
1510 F02
Figure 1. 500kHz Smallest Li-Ion Cell Phone Charger (0.8A)
Figure 2. Charging Lithium Batteries (Efficiency at 1.3A > 87%)
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1510CSPBF | 制造商:Linear Technology 功能描述:LT1510CSPBF |
| LT1510I | 制造商:LINER 制造商全称:Linear Technology 功能描述:Constant-Voltage/ Constant-Current Battery Charger |
| LT1510IGN | 功能描述:IC BATT CHARGER CONST V/I 16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LT1510IGN#PBF | 功能描述:IC BATT CHARGER CONST V/I 16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LT1510IGN#TR | 功能描述:IC CHARGER BATT CONST V/I 16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
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